Enzymes are proteins that act as biological catalysts. Catalysts accelerate chemical reactions. The molecules upon which
enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as products.Enzymes help speed up chemical reactions in the human body. They bind to molecules and alter them in specific ways. They are essential for respiration, digesting food, muscle and nerve function, among thousands of other roles. Digestive enzymes are mostly produced in the pancreas, stomach, and small intestine. But even your salivary glands produce digestive enzymes to start breaking down food molecules while you're still chewing.
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